package demo0428;

import com.USB;

class Mouse extends USB {
    @Override
    public void open() {
        System.out.println("鼠标USB接口开启");
    }
    @Override
    public void close() {
        System.out.println("鼠标USB接口关闭");
    }
    public void click() {
        System.out.println("鼠标被点击");
    }
}
